Pepperl+Fuchs DA5-IU-C Caractéristiques Techniques page 19

DA5-IU-C
8.2 Filling level measurement
A filling level sensor with linear characteristics
(in case of non-linear sensors, install linea-
rizing components upstream) delivers 4 mA
when a container is empty and 20 mA when it
is full. The value 10 m
the full container and 0 m
tainer. The selected measuring range is 4 ...
20 mA. 4 mA is the smallest measured value
possible. The display value 0 can now be assi-
gned to this measured value. Accordingly, 20
mA is the largest measured value. The display
value 10 is assigned to this measured value.
The display is now set for the sensor and can
display any intermediate value.
8.3 Removed quantity
Instead of the filling quantity, the value to
display is the removed quantity. The selected
measuring range is again 4 ... 20 mA. A
display value of 10 is now assigned to the
smallest measured value (4 mA) and a display
value of 0 is assigned to the largest measured
value (20 mA).
3
must be displayed for
3
for the empty con-
8.4 Filling level measurement with limit
value display
In this third case too, the available quantity
must be displayed ; the container has a
3
capacity of 10 m but it can be filled at the
3
maximum to 8 m . Moreover, the content shall
3
not sink below 1 m . So, for values > 8 m
must be displayed and, for values < 1 m
must be displayed.
The selected measuring range is 4 ... 20 mA.
The display value 0 is assigned to the smallest
input value and 10 is assigned to the largest
input value. In addition, the menu item "Mini-
mum input signal" is used to set the measured
value that corresponds to a content of
3
1 m , e.g. 5.6 mA and the menu item "Maxi-
mum input signal" is used to set the measured
value that corresponds to a content of 8 m
e.g. 16.8 mA. Therefore, "hi" is displayed for
input values > 16.8 mA and "lo" for input valu-
es < 5.6 mA.
Maximum
input voltage
or maximum
input current
freely positi-
onable within
the input vol-
tage, resp. the
input current
range.
Display value freely positionable
within the display range
Page 9 (R60046.9398 - Index 1)
3
"hi"
3
"lo"
3
,
Minimum input
voltage or
minimum input
current freely
positionable
within the
input voltage,
resp. the input
current range.